A ray of light travelling through air encounters a 1.7-cm-thick sheet of glass at a 45 ∘ angle of incidence. Assume n = 1.5. How far does the light ray travel inside the glass before emerging on the far side?Express your answer in centimeters.

A ray of light strikes a slab of glass at an angle of incidence of 35°. The angle of refraction in the glass is O 22° O 15.4° O 29.5° O 27.6° 35° n = 1.33 Glass n = 1.55

A ray of light crosses the boundary between some substance with n = 1.54 and air, going from the substance into air. If the angle of incidence is 29◦ what is the angle of refraction?   Calculate to 1decimal.

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A glass optical fiber is used to transport a light ray across a long distance. The fiber has an index of refraction of 1.520 and is submerged in ethyl alcohol, which has an index of refraction of 1.361. What is the critical angle (in degrees) for the light ray to remain inside the fiber?

A ray of light hits the surface between air and an unknown material at an angle A of 58.8°. It travels through the unknown material at an angle B of 38.5° relative to the vertical. What is the index of refraction of the material?

To the nearest hundredth of an hour, how many hours are required before a radio signal from a space probe near the planet Uranus reaches Earth, 1.607 *109 km away? A light ray is reflected from a mirror with an angle 15.2° to the normal. What was the angle of incidence? Light passes through a transparent substance at a speed of 2.256 ×108 m/s. Based on the following table, what is the material? index of refraction (n = =) Glass Diamond Substance Ice Water Ethyl alcohol (Click to select) ✓ (Click to select) Ice Diamond Glass Ethyl alcohol Water 1.50 2.42 1.31 1.33 1.36 The wavelength of a monochromatic light source is measured to be 5.06 x10-7 m in a diffraction experiment. (a) What is the frequency? x 1014 Hz (b) What is the energy of a photon of this light? 10-19 J